[1]
Thomson, A. 1864. Notice of a Group of Four Circles of Standing Stones in the South Corner of the Parish of Banchory Devenich, County of Kincardine. Proceedings of the Society of Antiquaries of Scotland. 5, (Nov. 1864), 130–135. DOI:https://doi.org/10.9750/PSAS.005.130.135.